In honor of Valentine's Day, here's a romantic magazine illustration from 1950 by Harry Anderson. It's in gouache, 10 x 13.5 inches. It's a fine example of soft edges, which are challenging to achieve in gouache because of the rapid drying time.
Anderson used plenty of paint, big brushes, and fast decision-making. One of his secrets was to carefully preload the brush with a gradation that he prepped on the palette. Easier said than done—wish there were videos of him painting!
More Harry Anderson at Jim Pinkoski's website
Preview my gouache tutorial at Gumroad